Sensors, Vol. 18, Pages 1949: Preliminary Study on Biosensor-Type Time-Temperature Integrator for Intelligent Food Packaging

Sensors, Vol. 18, Pages 1949: Preliminary Study on Biosensor-Type Time-Temperature Integrator for Intelligent Food Packaging
Sensors doi: 10.3390/s18061949
Authors:
A. T. M. Mijanur Rahman
Do Hyeon Kim
Han Dong Jang
Jung Hwa Yang
Seung Ju Lee

A glucose biosensor was utilized as a platform for the time-temperature integrator (TTI), a device for intelligent food packaging. The TTI system is composed of glucose oxidase, glucose, a pH indicator, and a three-electrode potentiostat, which produces an electrical signal as well as color development. The reaction kinetics of these response variables were analyzed under isothermal conditions. The reaction rates of the electrical current and color changes were 0.0360 ± 0.0020 (95% confidence limit), 0.0566 ± 0.0026, 0.0716 ± 0.0024, 0.1073 ± 0.0028 µA/min, and 0.0187 ± 0.0005, 0.0293 ± 0.0018, 0.0363 ± 0.0012, 0.0540 ± 0.0019 1/min, at 5, 15, 25, and 35 °C, respectively. The Arrhenius activation energy of the current reaction (Eacurrent) was 25.0 ± 1.6 kJ/mol and the Eacolor of the color reactions was 24.2 ± 0.6 kJ/mol. The similarity of these Ea shows agreement in the prediction of food qualities between the electrical signal and color development. Consequently, the function of the new time-temperature integrator system could be extended to that o...

Source: Sensors - June 15, 2018 Category: Biotechnology Authors: A. T. M. Mijanur Rahman Do Hyeon Kim Han Dong Jang Jung Hwa Yang Seung Ju Lee Tags: Article Source Type: research